/* ===== RESET & BASE ===== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  overflow-x: hidden;
}

img {
  max-width: 100%;
  height: auto;
}

/* ===== ANIMATIONS ===== */
@keyframes float {
  0%, 100% { transform: translateY(0px) rotate(0deg); }
  50% { transform: translateY(-20px) rotate(3deg); }
}

@keyframes float-delay {
  0%, 100% { transform: translateY(0px) rotate(0deg); }
  50% { transform: translateY(-15px) rotate(-2deg); }
}

.animate-float {
  animation: float 6s ease-in-out infinite;
}

.animate-float-delay {
  animation: float-delay 8s ease-in-out infinite;
  animation-delay: 1s;
}

/* ===== REVEAL ANIMATIONS (progressive enhancement) ===== */
@media (prefers-reduced-motion: no-preference) {
  .reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s ease, transform 0.7s ease;
  }

  .reveal.revealed {
    opacity: 1;
    transform: translateY(0);
  }

  /* Stagger children */
  .reveal-delay-1 { transition-delay: 0.1s; }
  .reveal-delay-2 { transition-delay: 0.2s; }
  .reveal-delay-3 { transition-delay: 0.3s; }
  .reveal-delay-4 { transition-delay: 0.4s; }
}

/* Default state: always visible (no JS fallback) */
.reveal {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: no-preference) {
  .reveal {
    opacity: 0;
    transform: translateY(30px);
  }
}

/* ===== NAV ===== */
#nav.scrolled {
  background: rgba(59, 7, 100, 0.95);
  backdrop-blur-lg;
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.2);
}

/* ===== GEOMETRIC DECORATIONS ===== */
.geo-triangle {
  width: 0;
  height: 0;
  border-style: solid;
}

/* ===== BUTTON HOVER EFFECTS ===== */
a {
  text-decoration: none;
}

/* ===== SELECTION ===== */
::selection {
  background: color-mix(in srgb, #f59e0b 60%, transparent);
  color: #3b0764;
}

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: #faf5ff;
}

::-webkit-scrollbar-thumb {
  background: linear-gradient(to bottom, #9333ea, #f59e0b);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(to bottom, #a855f7, #fbbf24);
}

/* ===== MOBILE MENU ===== */
#mobile-menu {
  animation: slideDown 0.3s ease;
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ===== FOCUS STYLES ===== */
a:focus-visible,
button:focus-visible {
  outline: 2px solid #f59e0b;
  outline-offset: 2px;
  border-radius: 4px;
}

/* ===== UTILITY ===== */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}